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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

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 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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 */

/*

 * @test

 * @bug 8142931

 * @summary java compiler: type erasure doesn't work since 9-b28

 * @modules jdk.compiler/com.sun.tools.javac.api

 *          jdk.compiler/com.sun.tools.javac.file

 */

import java.io.*;

import java.util.*;

import javax.annotation.processing.*;

import javax.lang.model.*;

import javax.lang.model.element.*;

import javax.lang.model.util.ElementFilter;

import javax.lang.model.type.TypeMirror;

import javax.lang.model.type.DeclaredType;

import javax.tools.*;

import com.sun.source.util.*;

import com.sun.tools.javac.api.*;

@SupportedAnnotationTypes("*")

public class T8142931 extends AbstractProcessor {

    public java.util.List<? extends javax.xml.namespace.QName> f0;

    public static void main(String... args) throws IOException {

        String testSrc = System.getProperty("test.src", ".");

        String testClasses = System.getProperty("test.classes");

        JavaCompiler tool = ToolProvider.getSystemJavaCompiler();

        MyDiagListener dl = new MyDiagListener();

        try (StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, null)) {

            Iterable<? extends JavaFileObject> files =

                fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrc, T8142931.class.getName()+".java")));

            Iterable<String> opts = Arrays.asList(

                "--add-exports", "jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED",

                "-XDaccessInternalAPI",

                "-proc:only",

                "-processor", "T8142931",

                "-processorpath", testClasses);

            StringWriter out = new StringWriter();

            JavacTask task = (JavacTask)tool.getTask(out, fm, dl, opts, null, files);

            task.call();

            String s = out.toString();

            System.err.print(s);

            System.err.println(dl.count + " diagnostics; " + s.length() + " characters");

            if (dl.count != 0 || s.length() != 0)

                throw new AssertionError("unexpected output from compiler");

        }

    }

    @Override

    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {

        Set<? extends Element> set = roundEnv.getRootElements();

        for (Element element : set) {

            Collection<VariableElement> fields = ElementFilter.fieldsIn(((TypeElement) element).getEnclosedElements());

            for (VariableElement field : fields) {

                TypeMirror listType = field.asType();

                List<? extends TypeMirror> typeArgs = ((DeclaredType) listType).getTypeArguments();

                TypeMirror arg = typeArgs.get(0);

                String erasure = processingEnv.getTypeUtils().erasure(arg).toString();

                if (!erasure.equals("javax.xml.namespace.QName"))

                    throw new AssertionError("Wrong Erasure: " + erasure);

            }

        }

        return false;

    }

    @Override

    public SourceVersion getSupportedSourceVersion() {

        return SourceVersion.latest();

    }

    static class MyDiagListener implements DiagnosticListener {

        public void report(Diagnostic d) {

            System.err.println(d);

            count++;

        }

        public int count;

    }

}